S
M
T
W
T
F
S
30
68°
54°
31
70°
53°
1
70°
51°
2
68°
48°
3
68°
48°
4
70°
53°
5
72°
53°
6
71°
52°
7
70°
53°
8
69°
52°
9
67°
50°
10
65°
51°
11
69°
48°
12
65°
47°
13
66°
46°
14
66°
48°
15
67°
49°
16
67°
47°
17
68°
49°
18
67°
47°
19
68°
47°
20
67°
49°
21
67°
46°
22
64°
44°
23
61°
44°
24
62°
45°
25
66°
48°
26
67°
48°
27
66°
42°
28
63°
42°
29
64°
47°
30
65°
47°
1
65°
46°
2
64°
47°
3
65°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in March
March's September 2026 forecast shows daily high temperatures ranging from 61° to 72°, with overnight lows between 42° and 54°. The average high for September is 67° with an average low of 48°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in March. See also: October | November | December.
